Home / 18,390,055.60-27,585,083.40-15,520,274.20

Finding the Fourth Proportional to 18,390,055.60, 27,585,083.40 and 15,520,274.20

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Solution

The fourth proportional to 18,390,055.60, 27,585,083.40 and 15,520,274.20 is: 23,280,411.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,390,055.60 : 27,585,083.40 = 15,520,274.20 : x
  2. Step 2: Convert to fraction form
    18,390,055.60/27,585,083.40 = 15,520,274.20/x
  3. Step 3: Cross multiply
    18,390,055.60x = 27,585,083.40 × 15,520,274.20
  4. Step 4: Simplify right side
    18,390,055.60x = 428,128,058,197,868.25
  5. Step 5: Solve for x
    x = 428,128,058,197,868.25/18,390,055.60
  6. Step 6: Final answer
    x = 23,280,411.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.